Senior Software Engineer - Backend

Lafayette, CO
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The journey to space starts with the engines. 

Ursa Major was founded to bring a new model to space access: one in which every link in an enormous value chain isn’t limited by those around it. We design rocket engines and propulsion solutions.  
Our products and technologies require an extraordinary team. A team that will mold tomorrow’s technologies while deploying today’s best. We are an intrinsically motivated team that has a passion for solving problems and empowering each other every day to develop our skills, knowing that there is always room for growth.

The Software Engineering team at Ursa Major has an opportunity for a Senior Software Engineer. In this role, you will directly impact our ability to scale our rocket engine design, test, and manufacturing capabilities.  Our team supports these capabilities by designing software systems that optimize the inner loops of critical processes and expose the relationships in our data. The ideal candidate will have a strong engineering foundation and a proven history of creating high-quality networked services. You will be a great fit for our team if you have a growth mindset, are tenacious in attacking both problems and opportunities, are a clear and open communicator, and are an excellent problem-solver.


  • Work on a small, cross-functional team of Software Engineers, Test/QA, and DevOps
  • Design production systems that meet internal stakeholders’ requirements
  • Break large projects into manageable tasks and work with a team to implement them
  • Coach and mentor junior team members on Software Engineering best practices
  • Design, develop, modify, implement, and support software components anywhere in the software stack
  • Determine the root cause for the most complex software issues and develop practical, efficient, and permanent technical solutions
  • Assist in task planning and estimation
  • Write excellent documentation


  • 3+ Engineering/CS degree as a Software Engineer, or equivalent experience
  • High proficiency with Python
  • High proficiency with a statically typed and compiled language (such as C/C++/Rust/Go)
  • Experience with SQL databases and efficient schema design
  • Experience with Linux and shell scripting
  • Analytical mind with problem-solving aptitude
  • Comfortable with a container-based development workflow
  • Understanding of latest industry trends and best practices
  • Excellent problem solving, project management, and communication skills

Desired Experience:  

  • Master’s degree in Engineering/CS
  • Experience developing software in aerospace or other highly technical field
  • Experience with stream processing, event-driven architectures, and time-series data systems

Benefits Include:

  • Unlimited PTO - Vacation, Sick, Personal, and Bereavement
  • Paid parental and Adoptive Leave
  • Medical, Dental, and Vision Insurance
  • Tax Advantage Accounts (HSA/FSA)
  • Employer Paid Short- and Long-Term Disability, Basic Life, AD&D
  • Additional Benefit Options Including Voluntary Life, Emergency Medical Transport, and Pet Insurance
  • EAP Program 
  • Retirement Savings Plan - Traditional 401(k) and a Roth 401(k)
  • Company stock options

Colorado law requires us to tell you the base compensation range of this role, which is $100,000 - $180,000, determined by your education, experience, knowledge, skills, and abilities. What we can’t quantify for you are the exciting challenges, supportive team, and amazing culture we enjoy. Click here for more information about our awesome benefits.

NOTE: Research suggests that women and BIPOC individuals may self-select out of opportunities if they don't meet 100% of the job requirements. We encourage anyone who believes they have the skills and the drive necessary to succeed here to apply for this role.
We’re an equal opportunity employer. You will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran, or disability status.
No outside recruiters, please.